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Patients with esophageal stenosis had a significantly increased risk of EF with CRT [28]. We graded the degree of esophageal stenosis by barium esophagography examination. It was found that EF was more likely to occur when the esophageal diameter was ＜0.5 cm. Of the 46 patients with EF, 41 patients had esophageal stenosis (89.13%). ................
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